附上我改動的方法：PhoneWindowManager.java裡面的改動
— a/frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
+++ b/frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
@@ -2863,7 +2863,9 @@ public class PhoneWindowManager implements WindowManagerPolicy {
@Override
public int adjustSystemUiVisibilityLw(int visibility) {

•    mStatusBarController.adjustSystemUiVisibilityLw(mLastSystemUiFlags, visibility);
  

•   if(Settings.System.getInt(mContext.getContentResolver(),"factorytest.touch.mode",0) == 0){
  

•            mStatusBarController.adjustSystemUiVisibilityLw(mLastSystemUiFlags, visibility);
  

•   }
     mNavigationBarController.adjustSystemUiVisibilityLw(mLastSystemUiFlags, visibility);
     // Reset any bits in mForceClearingStatusBarVisibility that
   
  

Acitvity裡面使用例如以下方式：
— a/huaqin/source/packages/FactoryKitTest/src/com/android/huaqin/factory/TestTouchPanelLine2.java
+++ b/huaqin/source/packages/FactoryKitTest/src/com/android/huaqin/factory/TestTouchPanelLine2.java
@@ -32,6 +32,8 @@ import android.view.WindowManager;
import java.util.ArrayList;
import java.util.List;
+import android.provider.Settings;
+import android.app.StatusBarManager;
public class TestTouchPanelLine2 extends Activity {
private static final String TAG = “TestTouchPanelLine”;
@@ -54,6 +56,7 @@ public class TestTouchPanelLine2 extends Activity {
private static final int MSG_TEST_PANEL_NEXT_ITEM = 100;
private static final int MSG_TEST_PANEL_START = 101;
private static final int MSG_TEST_PANEL_STOP = 102;

•   private StatusBarManager mStatusBarManager;
    private Handler mInHandler = new Handler() {
            @Override
  

@@ -94,6 +97,12 @@ public class TestTouchPanelLine2 extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
@@ -141,8 +150,22 @@ public class TestTouchPanelLine2 extends Activity {
.obtainMessage(FactoryTestMessage.MSG_OPEN_UI_OK);
msg.arg1 = (int) ID;
mOutHandler.sendMessage(msg);

•           mStatusBarManager = (StatusBarManager) this.getSystemService(Context.STATUS_BAR_SERVICE);
  

•           int state= StatusBarManager.DISABLE_EXPAND;
  

•               state |= StatusBarManager.DISABLE_NOTIFICATION_ICONS;
  

•               state |=  StatusBarManager.DISABLE_SYSTEM_INFO;
  

•           mStatusBarManager.disable(state);
    }
  

•       @Override
  

•       protected void onPause() {
  

•           int state =  StatusBarManager.DISABLE_NONE;
  

•           mStatusBarManager.disable(state);
  

•           super.onPause();
  

•       }
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
            // 是否觸發按鍵為back鍵
  

下面是從MTK Online 上面找到的解決方式。保留備用。
Google從KK開始添加了狀態列透明以及全屏介面有通知能夠下拉狀態列的設計，而這個設計出現的隱患是設定了FULL_SCREEN的介面是無法禁止狀態列下拉的。這樣對一些project測試app可能會造成一定的影響。可是以google預設的設計，應用端無法改動此設計來滿足自己的需求。
MTK 內部已經開發提供新的介面來實現全屏介面禁止下拉狀態列，假設貴司的程式碼還沒有這部分邏輯，請參考例如以下：

1. frameworks\base\core\java\android\view\View.java

public static final int SYSTEM_UI_FLAG_IMMERSIVE_STICKY = 0x00001000;

• /**

• * @hide
  

• *
  

• * NOTE: Flag for {@link #setSystemUiVisibility(int)}: It help user to disable transient
  

• * status bar triggered by gesture
  

• */
  

• public static final int SYSTEM_UI_FLAG_IMMERSIVE_GESTURE_ISOLATED = 0x00002000;

2. frameworks\base\policy\src\com\android\internal\policy\impl\PhoneWindowManager.java
   // monitor for system gestures
   mSystemGestures = new SystemGesturesPointerEventListener(context,
   new SystemGesturesPointerEventListener.Callbacks() {
   @Override
   public void onSwipeFromTop() {

•                    if (isGestureIsolated())
  

•                        return;
                    if (mStatusBar != null) {
                        requestTransientBars(mStatusBar);
                    }
                }
                @Override
                public void onSwipeFromBottom() {
  

•                    if (isGestureIsolated())
  

•                        return;
                    if (mNavigationBar != null && mNavigationBarOnBottom) {
                        requestTransientBars(mNavigationBar);
                    }
                }
                @Override
                public void onSwipeFromRight() {
  

•                    if (isGestureIsolated())
  

•                        return;                   
                    if (mNavigationBar != null && !mNavigationBarOnBottom) {
                        requestTransientBars(mNavigationBar);
                    }
                }
                @Override
                public void onDebug() {
                    // no-op
                }
  

•                private boolean isGestureIsolated() {
  

•                    WindowState win = mFocusedWindow != null ? mFocusedWindow : mTopFullscreenOpaqueWindowState;
  

•                    if (win != null && (win.getSystemUiVisibility() & View.SYSTEM_UI_FLAG_IMMERSIVE_GESTURE_ISOLATED) != 0)
  

•                        return true;
  

•                    else
  

•                        return false;
  

•                }
            });
  

3. 請在改動完framework後，將測試app用setSystemUiVisibility的API加上SYSTEM_UI_FLAG_IMMERSIVE_GESTURE_ISOLATED的flag